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AX3512 - 600mA Synchronous Step-Down Converter

Description

AX3512 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture.

The device is available in an adjustable version.

Features

  • 2.5V to 5.5V Input Voltage Range Output Voltage from 0.6V to VIN High Efficiency: Up to 95% 1.4MHz Constant Frequency Operation Up to 600mA Output Current Quiescent Current: 250uA (Typical) No Schottky Diode Required Current Mode Operation for Excellent Line and Load Transient Response Current limit, Enable function Short Circuit Protect (SCP) Build in soft start function ≤ 1µA Shutdown Current TSOT-23-5L and TDFN-6L Pb-Free packages 1/13 Axelite Confidential Materials, do not copy or distribut.

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Datasheet preview – AX3512

Datasheet Details

Part number AX3512
Manufacturer AXElite
File Size 593.43 KB
Description 600mA Synchronous Step-Down Converter
Datasheet download datasheet AX3512 Datasheet
Additional preview pages of the AX3512 datasheet.

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Full PDF Text Transcription

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AX3512 1.4MHz, 600mA Synchronous Step-Down Converter  GENERAL DESCRIPTION AX3512 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version. Supply current with no load is 250uA and drops to <1uA in shutdown. The 2.5V to 5.5V input voltage range makes AX3512 ideally suited for single Li-Ion, two to three AA battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM operation provides very low output ripple voltage for noise sensitive applications. Switching frequency is internally set at 1.4MHz, allowing the use of small surface mount inductors and capacitors.
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